Malicious PDF — malware analysis report

Static analysis result for SHA-256 449b76ca359df02f…

MALICIOUS

PDF

41.1 KB Created: 2020-08-20 04:42:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bc6fd56b56898fdd4ebd6fe8b7759e9f SHA-1: 3d3594697ab1fd998301ecc774521c62dd4d66cf SHA-256: 449b76ca359df02f2d9d540a5669087c91aa6b3269eebea8e2ffa26a50d98b6c
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many pointing to a redirector URL (https://ttraff.ru/pify?keyword=badlands+halsey+all+songs) which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL and appears to be a lure for free downloads, consistent with phishing or malware distribution. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=badlands+halsey+all+songs In PDF document text
    • http://files.williamsburgrec.com/uploads/1/3/2/6/132682745/tagogumolizim_fofuzipupi.pdfIn PDF document text
    • http://files.wehelpmoving.ca/uploads/1/3/1/1/131164007/7b2e487fb617.pdfIn PDF document text
    • http://files.steigerclass.com/uploads/1/3/1/4/131406947/fuvuposawaxiri.pdfIn PDF document text
    • http://files.nnhst2.org/uploads/1/3/1/3/131381288/tadivixufofexakulo.pdfIn PDF document text
    • http://benuzo.zoesherphotography.com/uploads/1/3/2/6/132682137/4b18001455d8b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3019/8937/files/32073600761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/3266/9334/files/normal_blood_pressure_by_age.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8280/0542/files/gafuborevedesodem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7565/6094/files/html_side_menu_bar_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9349/8787/files/adagio_in_g_minor_albinoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0889/1807/files/abelian_group_example_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1222/6206/files/87088900649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4066/8838/files/37536834166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5730/7039/files/duwerenoniv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8071/2346/files/wisovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4143/8366/files/angular_momentum_in_quantum_mechanics_a._r._edmonds.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F1 5140 bytes
SHA-256: 7cef51d263b43be2dc9c71de74765a24bf18eaa8ba3cdba3e69768778933421a
font_01_sfnt_off00007470.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7470 10316 bytes
SHA-256: 54c2fefe662d35fc2cc634ed2bbd7ba16830e312c9aae6608fda22c5654c2aac